Yes, early infrared imaging systems were "push broom"[1] scanners facing perpendicular to the direction of travel. Forward-looking sensors required some additio

Yes, early infrared imaging systems were "push broom"[1] scanners facing perpendicular to the direction of travel. Forward-looking sensors required some additional tech to be developed: https://en.wikipedia.org/wiki/Forward-looking_infrared#Origin_of_the_term https://en.wikipedia.org/wiki/Forward-looking_infrared#Origi... FLIR is arguably a misnomer when applied to handheld devices, though. [1] https://en.wikipedia.org/wiki/Push_broom_scanner https://en.wikipedia.org/wiki/Push_broom_scanner